Which two options can help mitigate the performance issue?

Refer to the exhibit.

While testing the post-deployment WLAN network, you discover that an AP has been placed in a difficult

area. The AP cannot be moved easily because of various requirements. The client performance of various Apple and Microsoft operating system-based products does not meet expectations.

Which two options can help mitigate the performance issue? (Choose two.)
A . Add additional APs.
B . Increase the AP power level to maximum.
C . Rotate the AP 90 degrees to change antenna polarity.
D . Replace the AP with an AP and external antenna.
E . Change the AP location to one that is less RF hostile.

Answer: AD